There are some incredible YouTube videos of all this if you type in "Hippies" and "Occupy Wall Street" but alas lots of nudity, so you have to be careful.
Anyone who tries to make it look like this whole thing isn't hippie, or that "the man" is trying to discredit them by painting them as fornicating losers, uh, there is video after video of women taking their tops off, and I'm sure much worse than that is going on. It's like Woodstock or Glastonbury spilled out into the real world.
Here's one that gets the gist across without being too graphic, just don't scroll down and look at the other videos on the right.